Abstract: The present disclosure provides a simple and inexpensive method to produce reduced Graphene oxide (rGO). The method comprises conversion of low-cost carbon sources such as coal tar pitch (industrial by-product) into a high quality rGO wherein said conversion is carried out by annealing the carbon source at two different temperatures. The rGO is obtained at high yields by employing the present method and the obtained rGO demonstrates high conductivity and good surface area along with very low oxygen content.

Abstract: A visibility controlling device with switchable transparency. This design of visibility controlling device is economical and can be operated manually or under electric power. The time for switching from translucent to transparent state requires about 5-30 seconds.

Abstract: The present invention relates to hybrid transparent conducting electrode comprising reduced graphene oxide film, metal mesh and textured glass, wherein the reduced graphene oxide film is coated on the textured glass embedded with the metal mesh or the reduced graphene oxide film is sandwiched between the textured glass and the metal mesh. The present invention also relates to a process of preparing the hybrid conducting transparent conducting electrode. The said transparent conducting electrode exhibits transparency ranging from about 70% to 85% with sheet resistance ranging from about 5 ?/sq to 100 ?/sq.

Abstract: The present disclosure relates to production of electrodes. The present disclosure particularly relates to production of graphene based transparent conducting electrode (TCE). The disclosure provides a simple and environmental friendly process for producing said graphene based TCE by coating of graphene on a modified or non-modified substrate. Said electrode provides large area metal network with reduced non-uniformity of conducting film, visible transparency and low or reduced sheet resistance. The disclosure further relates to a graphene based transparent conductive electrode (TCE).

Abstract: A visibility controlling device with switchable transparency. This design of visibility controlling device is economical and can be operated manually or under electric power. The time for switching from translucent to transparent state requires about 5-30 seconds.

Abstract: The present disclosure provides a simple and inexpensive method to produce reduced Graphene oxide (rGO). The method comprises conversion of low-cost carbon sources such as coal tar pitch (industrial by-product) into a high quality rGO wherein said conversion is carried out by annealing the carbon source at two different temperatures. The rGO is obtained at high yields by employing the present method and the obtained rGO demonstrates high conductivity and good surface area along with very low oxygen content.

Abstract: The present invention relates to hybrid transparent conducting electrode comprising reduced graphene oxide film, metal mesh and textured glass, wherein the reduced graphene oxide film is coated on the textured glass embedded with the metal mesh or the reduced graphene oxide film is sandwiched between the textured glass and the metal mesh. The present invention also relates to a process of preparing the hybrid conducting transparent conducting electrode. The said transparent conducting electrode exhibits transparency ranging from about 70% to 85% with sheet resistance ranging from about 5?/sq to 100?/sq.

Abstract: The present disclosure relates to production of electrodes. The present disclosure particularly relates to production of graphene based transparent conducting electrode (TCE). The disclosure provides a simple and environmental friendly process for producing said graphene based TCE by coating of graphene on a modified or non-modified substrate. Said electrode provides large area metal network with reduced non-uniformity of conducting film, visible transparency and low or reduced sheet resistance. The disclosure further relates to a graphene based transparent conductive electrode (TCE).

Abstract: The present disclosure relates to a process for producing graphene, wherein the process is simple and economical. In the said process the substrate is contacted with vaporized seedlac to produce graphene on a substrate including but not limited to conductive material and non-conductive material. The disclosure further relates to a graphene which is impermeable to ions and molecules, resistant to oxidation and is hydrophobic. The disclosure furthermore relates to a substrate comprising graphene, said substrate is resistant to corrosion, resistant to oxidation and is hydrophobic.

Abstract: The present disclosure provides compositions comprising colloidal matter in solvent, employed for crackle formation when exposed to surface of a substrate. The said compositions crackle spontaneously without any external stimuli when exposed to the substrate surface as a film. The present disclosure also relates to substrates having a film by exposure to said composition and a method of preparing said substrate. The present disclosure also relates to patterned substrates fabricated with material or energy inputs deposited in template formed by crackling of the film and a method of preparing said patterned substrate and a kit for obtaining such substrates. The present disclosure also relates to using the said substrates for various applications specifically in the field of electronics or optoelectronics.

Abstract: The present disclosure relates to a process for producing graphene, wherein the process is simple and economical. In the said process the substrate is contacted with vaporized seedlac to produce graphene on a substrate including but not limited to conductive material and non-conductive material. The disclosure further relates to a graphene which is impermeable to ions and molecules, resistant to oxidation and is hydrophobic. The disclosure furthermore relates to a substrate comprising graphene, said substrate is resistant to corrosion, resistant to oxidation and is hydrophobic.

Abstract: Implementations and techniques for manufacturing strain sensitive sensors and/or strain resistant conduits from a metal and carbon matrix are generally disclosed.

Abstract: The present disclosure provides compositions comprising colloidal matter in solvent, employed for crackle formation when exposed to surface of a substrate. The said compositions crackle spontaneously without any external stimuli when exposed to the substrate surface as a film. The present disclosure also relates to substrates having a film by exposure to said composition and a method of preparing said substrate. The present disclosure also relates to patterned substrates fabricated with material or energy inputs deposited in template formed by crackling of the film and a method of preparing said patterned substrate and a kit for obtaining such substrates. The present disclosure also relates to using the said substrates for various applications specifically in the field of electronics or optoelectronics.

Abstract: Implementations and techniques for manufacturing strain sensitive sensors and/or strain resistant conduits from a metal and carbon matrix are generally disclosed.